John Overdeck Two Sigma Investments
John Overdeck is a co-founder of Two Sigma Investments, one of the world’s leading quantitative and technology-driven investment firms. Two Sigma applies data science, machine learning, and large-scale computing to markets across asset classes. Overdeck’s firm is a central reference point in discussions of modern systematic investing.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Intuit
INTU
|
+$753M |
| 2 |
Boston Scientific
BSX
|
+$540M |
| 3 |
Dow Inc
DOW
|
+$485M |
| 4 |
Wells Fargo
WFC
|
+$457M |
| 5 |
Goldman Sachs
GS
|
+$378M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Micron Technology
MU
|
+$1.32B |
| 2 |
NVIDIA
NVDA
|
+$1.02B |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$787M |
| 4 |
SNDK
Sandisk
SNDK
|
+$744M |
| 5 |
Dell
DELL
|
+$688M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 19.71% |
| 2 | Financials | 15.22% |
| 3 | Healthcare | 11.94% |
| 4 | Industrials | 11.55% |
| 5 | Consumer Discretionary | 9.6% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2276
First Community Corp
FCCO
$317M
| $3.99M | ﹤0.01% |
122,186
-34,442
| -22% | -$1.06M |
|
|
BDCI
2277
BTC Development Corp
BDCI
$352M
| $3.99M | ﹤0.01% |
396,439
| – | – |
|
2278
CVB Financial
CVBF
$3.97B
| $3.98M | ﹤0.01% |
176,700
-702,608
| -80% | -$14.4M |
|
2279
AngioDynamics
ANGO
$651M
| $3.98M | ﹤0.01% |
306,260
+75,809
| +33% | +$863K |
|
|
IACQ
2280
Irenic Acquisition Corp
IACQ
$320M
| $3.98M | ﹤0.01% |
+398,750
| New | +$3.97M |
|
2281
PENN Entertainment
PENN
$2.5B
| $3.98M | ﹤0.01% |
+186,355
| New | +$3.34M |
|
|
SCHW
2282
PUT
Charles Schwab
SCHW
$194B
| $3.97M | ﹤0.01% |
43,000
+15,700
| +58% | +$1.43M |
|
2283
PUT
IBM
IBM
$222B
| $3.97M | ﹤0.01% |
+14,100
| New | +$3.55M |
|
2284
Aurora
AUR
$12.5B
| $3.96M | ﹤0.01% |
+581,224
| New | +$3.56M |
|
2285
CALL
Comfort Systems
FIX
$58.3B
| $3.96M | ﹤0.01% |
2,000
| – | – |
|
|
2286
PUT
Comfort Systems
FIX
$58.3B
| $3.96M | ﹤0.01% |
2,000
| – | – |
|
2287
CACI
CACI
$14.3B
| $3.96M | ﹤0.01% |
8,553
-720
| -8% | -$368K |
|
2288
PUT
Philip Morris
PM
$293B
| $3.96M | ﹤0.01% |
21,900
+19,900
| +995% | +$3.45M |
|
|
ARTC
2289
Art Technology Acquisition Corp
ARTC
| $3.96M | ﹤0.01% |
398,750
| – | – |
|
|
PTOR
2290
Praetorian Acquisition Corp
PTOR
$338M
| $3.96M | ﹤0.01% |
398,750
| – | – |
|
|
GIX
2291
GigCapital9 Corp
GIX
| $3.96M | ﹤0.01% |
398,750
| – | – |
|
2292
First Trust Nasdaq Bank ETF
FTXO
$307M
| $3.96M | ﹤0.01% |
95,800
-276,700
| -74% | -$10.8M |
|
2293
CALL
Reddit
RDDT
$29.5B
| $3.96M | ﹤0.01% |
22,800
-52,200
| -70% | -$8.36M |
|
2294
Amalgamated Financial
AMAL
$1.46B
| $3.96M | ﹤0.01% |
86,222
-24,406
| -22% | -$1.03M |
|
|
SORN
2295
Soren Acquisition Corp
SORN
| $3.96M | ﹤0.01% |
398,750
| – | – |
|
2296
Civeo
CVEO
$357M
| $3.95M | ﹤0.01% |
112,938
-3,634
| -3% | -$117K |
|
2297
Energy Fuels
UUUU
$3.78B
| $3.95M | ﹤0.01% |
272,280
-1,751,065
| -87% | -$32.2M |
|
|
CAII
2298
Collective Acquisition Corp II
CAII
$338M
| $3.95M | ﹤0.01% |
+398,750
| New | +$3.95M |
|
2299
Lattice Semiconductor
LSCC
$16.7B
| $3.95M | ﹤0.01% |
25,800
-2,500
| -9% | -$323K |
|
|
DRD
2300
DRDGold
DRD
$2.66B
| $3.94M | ﹤0.01% |
184,994
+72,394
| +64% | +$1.96M |
|
Similar funds
John Overdeck's Q2 2026 Portfolio in Review
As of Q2 2026, John Overdeck held 5,589 positions worth $138B, up 11% from $124B the previous quarter. Its ten largest holdings account for 8.3% of the portfolio.
John Overdeck withdrew a net $4.38B in Q2 2026, closing 572 positions and reducing 1,756 holdings. Its most notable exit was State Street Technology Select Sector SPDR ETF, an estimated $172M position sold in full.
By sector, the portfolio is most concentrated in Technology at 20% of assets, up from 19% a quarter earlier, followed by Financials and Healthcare.
Against the trend, John Overdeck opened a new position in Intuit worth $564M.
- John Overdeck's largest Q2 2026 buy was Intuit: 2,161,507 shares worth $564M.
- John Overdeck added most to Boston Scientific in Q2 2026, an estimated $540M increase.
- John Overdeck's biggest Q2 2026 reduction was Micron Technology, cutting an estimated $1.32B.
- John Overdeck fully exited State Street Technology Select Sector SPDR ETF in Q2 2026, selling an estimated $172M.
- John Overdeck's ten largest holdings make up 8.3% of its $138B portfolio in Q2 2026.
- John Overdeck opened 1,050 new positions and closed 572 in Q2 2026.
- John Overdeck's portfolio value rose 11% quarter-over-quarter to $138B.
Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.